BadVPN – Blame information for rev 1
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1 | office | 1 | /** |
2 | * @file CHash_header.h |
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3 | * @author Ambroz Bizjak <ambrop7@gmail.com> |
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4 | * |
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5 | * @section LICENSE |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions are met: |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * 2. Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * 3. Neither the name of the author nor the |
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15 | * names of its contributors may be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | // Preprocessor inputs: |
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31 | // CHASH_PARAM_NAME - name of this data structure |
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32 | // CHASH_PARAM_ENTRY - type of entry |
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33 | // CHASH_PARAM_LINK - type of entry link (usually a pointer or index to an array) |
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34 | // CHASH_PARAM_KEY - type of key |
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35 | // CHASH_PARAM_ARG - type of argument pass through to comparisons |
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36 | // CHASH_PARAM_NULL - invalid link |
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37 | // CHASH_PARAM_DEREF(arg, link) - dereference a non-null link |
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38 | // CHASH_PARAM_ENTRYHASH(arg, entry) - hash function for entries; returns size_t |
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39 | // CHASH_PARAM_KEYHASH(arg, key) - hash function for keys; returns size_t |
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40 | // CHASH_PARAM_ENTRYHASH_IS_CHEAP - define to 1 if CHASH_PARAM_ENTRYHASH is cheap (e.g. hashes are precomputed) |
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41 | // CHASH_PARAM_COMPARE_ENTRIES(arg, entry1, entry2) - compares two entries; returns 1 for equality, 0 otherwise |
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42 | // CHASH_PARAM_COMPARE_KEY_ENTRY(arg, key1, entry2) - compares key and entry; returns 1 for equality, 0 otherwise |
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43 | // CHASH_PARAM_ENTRY_NEXT - next member in entry |
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44 | |||
45 | #ifndef BADVPN_CHASH_H |
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46 | #error CHash.h has not been included |
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47 | #endif |
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48 | |||
49 | // types |
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50 | #define CHash CHASH_PARAM_NAME |
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51 | #define CHashEntry CHASH_PARAM_ENTRY |
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52 | #define CHashLink CHASH_PARAM_LINK |
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53 | #define CHashRef MERGE(CHash, Ref) |
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54 | #define CHashArg CHASH_PARAM_ARG |
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55 | #define CHashKey CHASH_PARAM_KEY |
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56 | |||
57 | // non-object public functions |
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58 | #define CHashNullLink MERGE(CHash, NullLink) |
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59 | #define CHashNullRef MERGE(CHash, NullRef) |
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60 | #define CHashIsNullLink MERGE(CHash, IsNullLink) |
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61 | #define CHashIsNullRef MERGE(CHash, IsNullRef) |
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62 | #define CHashDerefMayNull MERGE(CHash, DerefMayNull) |
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63 | #define CHashDerefNonNull MERGE(CHash, DerefNonNull) |
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64 | |||
65 | // public functions |
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66 | #define CHash_Init MERGE(CHash, _Init) |
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67 | #define CHash_Free MERGE(CHash, _Free) |
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68 | #define CHash_Insert MERGE(CHash, _Insert) |
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69 | #define CHash_InsertMulti MERGE(CHash, _InsertMulti) |
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70 | #define CHash_Remove MERGE(CHash, _Remove) |
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71 | #define CHash_Lookup MERGE(CHash, _Lookup) |
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72 | #define CHash_GetNextEqual MERGE(CHash, _GetNextEqual) |
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73 | #define CHash_MultiplyBuckets MERGE(CHash, _MultiplyBuckets) |
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74 | #define CHash_Verify MERGE(CHash, _Verify) |
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75 | |||
76 | // private things |
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77 | #define CHash_next(entry) ((entry).ptr->CHASH_PARAM_ENTRY_NEXT) |
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78 | #define CHash_assert_valid_entry MERGE(CHash, _assert_valid_entry) |